live12_track_group

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It never says what happens if the indices are non-contiguous, if a track is already grouped, what the new group track is named, or whether the call returns the new group's index; for a mutation tool this is a substantial gap.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One sentence, front-loaded with the verb and resource, with no filler or repetition of the tool name. Its brevity is efficient rather than padded, though it leaves no room for the operational context the tool lacks.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

A mutation tool with no annotations and no output schema should at least describe side effects, failure modes, and what is returned. None of that is present, so an agent knows only the coarse purpose and must guess at edge-case behavior.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and the single parameter 'track_indices' is documented in the schema as zero-based indices with a minItems constraint. The description adds nothing beyond that, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('Groups specified tracks together under a new group track') plus the product context (Ableton Live 12), so the operation is unambiguous. It does not distinguish itself from the sibling live12_track_ungroup or explain how it relates to live12_track_create, so it falls short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this instead of live12_track_ungroup or live12_track_create, nor on prerequisites such as selecting tracks before grouping. The only usage signal is implied by the name and by the required track_indices parameter.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.